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All Journal Jurnal Ilmiah Teknik Mesin FLUIDA Vocatech : Vocational Education and Technology Journal Jurnal Teknologi dan Riset Terapan (JATRA) Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Jurnal Malikussaleh Mengabdi
Sugondo, Ebeng
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Religion Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Pembuatan Biobriket dari Limbah Daun dan Batang Kayu Putih (Malaleuca leucadendron) Guna Memanfaatkan Limbah Hasil Pertanian di Kecamatan Jeruklegi Kabupaten Cilacap Sonya Hakim Raharjo; Fatiha Nur Etnanta; Rosmawati Sipayung; Ebeng Sugondo; Asmaq Yuliah
Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Vol. 5 No. 1 (2023): JPPL, Maret 2023
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/jppl.v5i1.1762

Abstract

Oil reserves are increasingly decreasing in line with the use of non-renewable fossil fuels. One of the renewable energy sources is biomass. Some of the advantages of biomass briquettes are that they are environmentally friendly, more economical, and have better efficiency than coal briquettes. Eucalyptus leaves and stems (M. leucadendron) are the example of the biomass wastes that can be utilized as raw material for briquettes. The objectives of this research are to : Examine the fabrication of biobriquettes from the waste leaves and stems of eucalyptus (M. leucadendron); Examine the effect of the ratio of eucalyptus leaf and stem waste and adhesive on the characteristics of biobriquettes; Examine the effect of carbonization temperature of eucalyptus leaf and stem waste on the characteristics of biobriquettes; and Examine the effect of carbonization time of eucalyptus leaf and stem waste on the characteristics of biobriquettes. The biobriquettes fabrication process starts with the preparation of raw materials (drying), carbonization of biomass with a furnace, mixing raw materials with tapioca flour as adhesive, molding dough, and drying. Variable 6 with leaves and stems ratio is 5:1, with carbonization temperature of 800°C and carbonization time of an hour produces the best biobriquette product of water content 2.21 % and ash content 25.08%.
ANALISA CYCLIC VOLTAMMETRY GUNA RECOVERY TEMBAGA PADA LIMBAH ELEKTRONIK PRINTED CIRCUIT BOARDS (PCB) MENGGUNAKAN RELINE Sugondo, Ebeng; Wijaya, Andy; Proklamanto, Aan Subekti; Reziana, Fedika Gita; Etnanta, Fatiha Nur
Jurnal Ilmiah Teknik Mesin Vol 11 No 2 (2023): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jitm.v11i2.7074

Abstract

Cyclic voltammetry analysis for copper recovery on printed circuit boards (PCB) electronic waste using Reline (ChCl: Thiourea) has been successfully carried out. The use of Reline solution (ChCl: Thiourea) is included in the deep eutectic solvent (DES) as an alternative for the use of solvents that are cheap, efficient, and safe for the environment. The solvent is formed from a donor (HBD) and acceptor (HBA) bonds with a ratio of 1 mol: 2 mol to water which will produce a eutectic mixture. The results of XRF (X-ray fluorescence spectrometry) on the printed circuit board (PCB) after comminution obtained the highest element, namely copper at 17.91%, and became the object of research observation. All experiments on the cyclic voltammetry test produced irreversible type voltammograms. The addition of more than 50% water in the deep eutectic solvent (DES) affects the peaks of oxidation and reduction, and in theory, the current efficiency is 99.83% and the optimum test results occur at a temperature of 60 oC for testing the Reline type deep eutectic solvent (DES) solution (ChCl: Thiourea) with a potential of Ep = 4.2975 volts and Ep/2 = 4.2971 volts. SEM-EDX analysis results on a platinum plate (Pt) from deep eutectic solvent (DES) ChCl: Thiourea (Reline) capable of spontaneously depositing copper minerals onto the surface of the platinum plate (Pt). Keywords: Reline, Cyclic Voltammetry, Solvent
Dampak Kondisi Sosial Ekonomi dalam Meningkatkan Potensi Nelayan Tangkap Kabupaten Bintan, Kepulauan Riau Nurhuda, Yusuf; Novebriantika, Novebriantika; Sugondo, Ebeng; Silalahi, Meschac Timothee; Wijayanti, Ita; Fajrin, Aulia; Saihilmi, Muhammad Irsyad; Perkasa, Veryawan Nanda
Jurnal Malikussaleh Mengabdi Vol. 4 No. 1 (2025): Jurnal Malikussaleh Mengabdi, April 2025
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jmm.v4i1.21806

Abstract

Salah satu potensi alam Indonesia yang sangat besar adalah sumberdaya kelautan dan perikanan. Sumberdaya kelautan merupakan salah satu aset pembangunan yang penting dan memiliki peluang sangat besar untuk dijadikan sebagai sumber pertumbuhan perekonomian. Saat ini sektor kelautan dan perikanan di Kabupaten Bintan memiliki potensi pembangunan ekonomi yang sangat besar dan beragam. Kabupaten Bintan merupakan salah satu kabupaten di Provinsi Kepulauan Riau yang memiliki setidaknya 240 pulau-pulau kecil serta memiliki sumber daya pesisir dan laut yang sangat potensial. Penulisan ini bertujuan untuk menganalisa kondisi kehidupan nelayan tangkap Kabupaten Bintan dari aspek sosial, ekonomi serta mengidentifikasi bentuk-bentuk program pemberdayaan yang diberikan oleh pemerintah beserta hambatan yang terjadi dalam pelaksanaan program. Metode pengumpulan data yang digunakan dalam penelitian ini yaitu dengan menggunakan metode deskriptif dengan pendekatan kualitatif. Sumber data yang diambil merupakan data dari Badan Pusat Statistik Kabupaten Bintan Kepulauan Riau. Program pemberdayaan diharap dapat digunakan sebagai penunjang utama sebagai layanan dalam meningkatkan potensi dalam upaya peningkatan ekonomi dan sosial pada nelayan tangkap. Beberapa program merupakan upaya dalam meningkatkan program layanan pemberdayaan nelayan tangkap di Kabupaten Bintan. Selain itu juga diperlukanya komitmen untuk meningkatkan potensi serta dampak dari kegiatan program pemberdayaan untuk nelayan tangkap dalam upaya meningkatkan perekonomian masyarakat di Kabupaten Bintan Kepulauan Riau.
Utilization of Agricultural Waste from Brebeg Cilacap Village Become Biogas Using Cow Manure Sipayung, Rosmawati; Raharjo, Sonya H.; Sugondo, Ebeng; Aprilia, Anisa
Fluida Vol. 16 No. 1 (2023): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v16i1.4697

Abstract

Straw is one of the most prevalent agricultural wastes in Indonesia, particularly in Cilacap Regency. One hectare of rice fields can yield 7–10 tons of dried straw every growing season. In addition, cow dung in Brebeg Village has not been utilized optimally. Cow dung and straw can be utilized as an alternative energy, one of which is biogas. Biogas is produced through anaerobic fermentation in a biodigester. Methanogenic bacteria first convert straw and cow manure in the biodigester into gas, which is subsequently produced as a high concentration of methane. This technology can be easily applied especially for farmers and ranchers. These experiments were carried out by varying the ratio of cow dung, straw, distilled water, and the percentage of EM-4 bacteria with fermentation for 30 days in each variation. Based on the result, it is known that factors affecting biogas production are ratio of substrate, temperature, pH, and microorganisms. The best biogas is produced with a cow dung, straw, and distilled water ratio of 8:1:2 and 10% EM-4 bacteria with a flash time of 71-seconds and a blue flame. Although a particular sort of plastic is used in this laboratory-scale investigation to make it more efficient, it is prone to leaking. It is advised to use a fixed dome style of storage while scaling up the digester
Studi Kasus Kualitas Pengelasan Pada Material A694 F65 Overlay Inconel 625 Claded Menggunakan Metode Kombinasi Gtaw & Smaw Sugondo, Ebeng; Purba, Adi Syahputra; Kms M Avrieldi; Ismiyatun Nurjannah
Jurnal Teknologi Dan Riset Terapan (JATRA) Vol. 7 No. 2 (2025): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v7i2.10531

Abstract

Welding is a method of connecting metal that involves melting a portion of the parent and filler metals until they are liquid enough to fuse. Nowadays, welding is becoming more and more common, particularly in the oil and gas sector. Combining GTAW with SMAW techniques is one of them. Because it can create robust and corrosion-resistant joints, the oil and gas industry frequently uses the combination of GTAW and SMAW welding techniques. The welding procedure on ASTM A694/F65 material covered with Inconel 625 will be covered in this study. While Inconel 625 is resistant to corrosion and stress cracking, A694/F65 steel will offer toughness for applications with low temperature field circumstances. The benefits of the various welding techniques are strategically integrated by this combination of welding procedures. While SMAW delivers great mechanical strength and filling efficiency for the fill to cap weld portions, GTAW will offer superior penetration and surface cleanliness on the root weld. The results of the tests, which included visual inspection, Magnetic Particle Inspection (MPI), and Ultrasonic Testing (UT), demonstrated that no evidence of serious flaws exceeding the acceptance criteria of the cited standards AWS D1.1:2025 for MPI and ASME Section VIII Div. 1 Appendix 12 for UT was discovered. It is anticipated that the study will serve as a guide for the welding procedure on gas and oil pipes.
Pengaruh Tekanan Terhadap Umur Elektroda Pada Proses Las Titik Untuk Material Flow Through Heater Fadilah, Nurul; Havwini, Tian; Butar Butar, Hendra; Mantik, Andrew William Patria; Sugondo, Ebeng; Siregar, Aulia Putri
VOCATECH: Vocational Education and Technology Journal Vol 7, No 2 (2025): December
Publisher : Akademi Komunitas Negeri Aceh Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38038/vocatech.v7i2.213

Abstract

     AbstractThe pressure supplied to the electrode has a direct impact on the quality of the weld joint, making it one of the aspects that significantly affects the spot-welding process. The electrode's short lifespan is a major problem in resistance spot welding for high-volume vehicle manufacturing since the electrode component is crucial to the spot-welding process. The Work Instruction specifies the electrode's parameters, which include an energy storage of 209 V and an air pressure of 0.25±0.05 MPa. A charge voltage of 178 V is used throughout the welding process, with a squeeze of 9–12 seconds and a compress duration of 12 seconds. The holder holds the electrode along a length of 21 mm, with the upper and lower electrodes separated by 12 mm. The relative humidity is 70% and outside temperature is 30°C. 400-grit sandpaper is used to clean the electrode surface following 500 welds. An investigation of how electrode pressure affects electrode longevity during spot welding was carried out. The study used SolidWorks software's static and fatigue simulation techniques, modified for field circumstances. The pressing force applied to the electrode and its effect on electrode longevity were examined using this program. With a damage percentage of just 0.002%, the results demonstrated that a pressure of 0.25 MPa had no discernible effect on electrode degradation within 2100 cycles. Under this pressure, the electrode may last up to 100,000,000 cycles before failing. The study's findings indicate that the pressing process has little effect on electrode longevity.Keywords:Electrode., Lifetime., Spot welding., Solidworks simulation  AbstrakSalah satu faktor yang sangat mempengaruhi proses las titik, yaitu tekanan terhadap elektroda, karena akan secara langsung mempengaruhi kualitas sambungan pada pengelasan. Komponen elektroda sangat penting dalam metode pengelasan titik, sehingga umur pakai elektroda yang pendek menjadi masalah krusial dalam pengelasan titik resistansi pada manufaktur mobil bervolume tinggi. Parameter yang digunakan dalam menggunakan elektroda ini tercantum dalam Work Instruction, dengan Energy Storage 209 V dan Air Pressure 0.25±0.05 Mpa. Pada proses pengelasan menggunakan charge voltage 178 squeeze 9-12s dan compress 12. Jarak antara elektroda atas dan bawah 12mm, holder akan menjepit elektroda sepanjang 21mm. Suhu ruangan 30℃, kelembapan udara Rh70. Jika pengelasan sudah 500 kali, elektroda diamplas permukaannya menggunakan kertas pasir 400 CW. Adapun penelitian yang dilaksanakan untuk mengetahui pengaruh penekanan pada elektroda terhadap masa pakai dalam proses pengelasan titik. Pada penelitian yang dilakukan pengujiannya akan menggunakan metode simulasi static dan fatigue pada software solidworks dan telah diseuaikan dengan kondisi dilapangan, penggunaan software ini digunakan untuk melihat gaya tekan yang diberikan pada elektroda yang dapat mempengaruhi umur dari elektroda. Hasil penelitian sudah dilaksanakan menunjukkan bahwa tekanan sebesar 0,25 MPa tidak berdampak signifikan pada kerusakan elektroda dalam 2100 siklus karena persentase kerusakan yang didapat sebesar 0.002% serta siklus pakai yang didapatkan dengan tekanan tersebut bisa mencapai 100.000.000 untuk bisa membuat elektroda tersebut rusak. Berdasarkan hasil penelitian, disimpulkan bahwa umur pakai elektroda tidak dipengaruhi secara signifikan oleh proses penekanan.Kata Kunci:             Elektroda., Umur pakai., Las titik., Uji simulasi Solidworks
Co-Authors Andy Wijaya Anisa Aprilia Asmaq Yuliah Aulia Putri Siregar Butar Butar, Hendra Etnanta, Fatiha Nur Fajrin, Aulia Fatiha Nur Etnanta Ismiyatun Nurjannah Kms M Avrieldi Mantik, Andrew William Patria Novebriantika, Novebriantika Nurhuda, Yusuf Nurul Fadilah, Nurul Perkasa, Veryawan Nanda Proklamanto, Aan Subekti Purba, Adi Syahputra Raharjo, Sonya H. Reziana, Fedika Gita Rosmawati Sipayung Saihilmi, Muhammad Irsyad Sonya Hakim Raharjo Tian Havwini Wijayanti, Ita